Quantum computing is a revolutionary approach to computing that leverages the principles of quantum mechanics, such as superposition and entanglement, to process information. Unlike traditional computers, which use bits to represent data as 0s or 1s, quantum computers use quantum bits or qubits, which can represent 0, 1, or both simultaneously. This unique capability allows quantum computers to perform complex calculations at speeds far beyond what is possible with classical computers, making them particularly suited for tasks like cryptography, optimization, and simulations of molecular structures.